CVE-2026-1813

MEDIUMNVD 9.86.3▼
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory published 2026-02-04. NVD baseline CVSS 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
6.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability was found in bolo-blog bolo-solo up to 2.6.4. Affected is an unknown function of the file src/main/java/org/b3log/solo/bolo/pic/PicUploadProcessor.java of the component FreeMarker Template Handler. The manipulation of the argument File results in unrestricted upload. It is possible to launch the attack remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3
9.8
EG Score
6.3(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

February 4, 2026

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Jul 27, 2026
No patch confirmed yet.
generic

[Vulnerability]Bolo-Solo v2.6.4_stable Arbitrary File Write Vulnerability (RCE) · Issue #329 · bolo-blog/bolo-solo · GitHub

https://github.com/bolo-blog/bolo-solo/issues/329
generic

GitHub - bolo-blog/bolo-solo: 🍍Bolo菠萝博客 专为程序员设计的精致Java博客系统 | 🎸基于Solo深度定制 | ❤️完善文档轻松安装，贴心的技术支持 | 免登录评论 | 邮件/微信提醒 | 自定义图床 | 备案模式 | ✨精致主题持续更新 | 一键备份 | 防火墙 | 评论过滤 | 独立分类 | 文章与GitHub同步 | ✅安装太轻松！支持 Tomcat Docker 宝塔面板 | 支持Windows Linux MacOS Web容器 | 支持ARM处理器 X86/64处...

GitHub - bolo-blog/bolo-solo: 🍍Bolo菠萝博客 专为程序员设计的精致Java博客系统 | 🎸基于Solo深度定制 | ❤️完善文档轻松安装，贴心的技术支持 | 免登录评论 | 邮件/微信提醒 | 自定义图床 | 备案模式 | ✨精致主题持续更新 | 一键备份 | 防火墙 | 评论过滤 | 独立分类 | 文章与GitHub同步 | ✅安装太轻松！支持 Tomcat Docker 宝塔面板 | 支持Windows Linux MacOS Web容器 | 支持ARM处理器 X86/64处理器 | 🚚支持从Solo轻松迁移 · GitHub

https://github.com/bolo-blog/bolo-solo/

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 120 total refreshes for this CVE.

  1. 2026-07-27 14:13 UTCEPSS rescore
  2. 2026-07-26 14:54 UTCEPSS rescore
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  1. 2026-07-13 22:30 UTCEPSS rescore
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-1813?
CVE-2026-1813 is a medium vulnerability published on February 4, 2026. A vulnerability was found in bolo-blog bolo-solo up to 2.6.4. Affected is an unknown function of the file src/main/java/org/b3log/solo/bolo/pic/PicUploadProcessor.java of the component FreeMarker Template Handler. The manipulation of the argument File results in unrestricted upload. It is possible…
When was CVE-2026-1813 disclosed?
CVE-2026-1813 was first published in the National Vulnerability Database on February 4, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-1813 actively exploited?
CVE-2026-1813 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 74.1% of all scored CVEs.
What is the CVSS score of CVE-2026-1813?
CVE-2026-1813 has a CVSS v3 base score of 9.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 6.3.
How do I remediate CVE-2026-1813?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-1813, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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